Question

Jawab secepatnya ya Nomor 9 dan 10 lagi butuh banget nih

Answer 1

Verified answer

Jawab

9)

8ˣ^² ⁻⁴ˣ ⁻⁵  = 1= 8⁰

x² - 4x - 5= 0
(x - 5)(x +1) = 0
x= 5  atau x = - 1


10)

3²ˣ⁻¹ = 9 ²ˣ ⁺⁴
3²ˣ⁻¹ = 3²⁽²ˣ⁺⁴)

2x - 1 = 2(2x + 4)
2x  -1 = 4x + 8
-2x = 9
x = - 9/2